China Patent --OTS reduction - tunnel car bottom furnace direct reduction process quickly restore portrait released

A new direct reduction iron reduction process - quickly restore tunnel car bottom furnace (OTS reduction method) was obtaining approval of invention patents in China State Intellectual Property Office on November 8. The process is following the invention of our company "E-S fast reduction process" after another patent. Its five advantages are: - simple process. Mature technology and metal pellets tunnel kiln mature craft the perfect combination to make the process simple and reliable. - Widely used. ■ as DRI process equipment: high grade iron obtained directly reduced iron (DRI) for the high rate of metallization and steelmaking furnace used with high-quality iron ore fines and low ash coal. Direct reduction of iron ore and low-grade coal was available for the use of blast furnace ironmaking. ■ As a pre-reduction smelting reduction equipment: a lower grade of iron ore and coal resulting product need to go through the final reduction, melting, the slag, iron separation and obtain iron.

■ as a processing iron dust reduction equipment: such as blast furnace ashes, dust and mud and rolling steel oil sludge etc., in Japan and the United States are treated with this kind deal with steel mills iron dust, both get DRI, and recyclable Zn, Ni., Cr. ■ As the recovery device for vanadium and titanium: the vanadium-titanium magnetite concentrate made from carbon-containing pellets, the tunnel car bottom furnace quickly restore the pre-reduction, and then carry out the final reduction and electric arc furnace melting points, which can get TIO2 in Slag. - Saving investment. Due to the process is simple; process equipment investment in fixed assets can be reduced to 230 to 300 yuan / ton DRI. - Reduce costs. With the removal of the reaction vessel and maximize the recovery of waste heat, combined with the reduction much faster (increased from 20 ~ 30h shortened to 20 ~ 120min). Thus saving energy, energy consumption indicators can achieve 600 ~ 900kcal / kg. Compared with modern tunnel kiln reduction process, DRI production costs can be reduced from 200 to 300 yuan. - Environment friendly. Gas emission targets, dust, noise; OTS technology is much lower than the national emission standards. Waste water, waste emissions to zero.